Vintage International Mailers Union IMU Lapel Pin Tie Tack Sterling Silver ITU

This vintage International Mailers Union (IMU) lapel pin tie tack is made of sterling silver and features the emblem of the trade union. As a collectible item of historical memorabilia, it represents the fraternal organization and its members who were active in the international mailers industry. The pin serves as a symbol of unity and pride for those who were associated with the union, making it a valuable piece for collectors and enthusiasts of labor history.